A special feature of this stand card is the absence of mechanical hinges. They are replaced by a composite of two types of plastic. This made it possible to achieve the minimum thickness (1.4mm), print time (25 minutes) and plastic consumption (7.18 grams).
The stand is convenient to carry with you - it is foldable and as flat as possible. And also a small one - the size of a credit card.

The stand allows you to adjust the angle of your smartphone and place it vertically or horizontally. I printed the sides in different colors, since the maximum angle of inclination from different sides is different, you can choose a convenient one. The stand is suitable for different models up to 11 mm thick.

On layer change, I replace rigid PETG with flexible TPEE, and then vice versa. This creates a simple hinge that can be printed in place. Both of these plastics are good at sintering and printing at the same temperature (I only slowed down the speed for TPEE a little, but this is not necessary).
Printing requires two changes of filament - from PETG to TPE after the third layer and vice versa after the fourth. Everything is printed 0.3 mm thick, the first layer is 0.2 mm. No support required.
Don't forget to remove the automatic filament loading - for flexible plastics this can end up tangling in the extruder.

Alternatively, you can use printing with one semi-rigid plastic of the SBS type (it will withstand at least several dozen folds).

All pauses have already been created in the 3mf file, and the model is positioned so that the bridges are perpendicular to the breaks.

I have a few smartphone models, but this should work with most. Write how it works with your model.

Check out my other thin coasters: https://youtu.be/GFL89vUXNDc